How to Calculate Cooking Unit Conversion

Cooking units vary by country and recipe tradition. The most common conversions involve cups, tablespoons, teaspoons, milliliters, and grams.

The Formula

1 cup = 16 tbsp = 48 tsp = 236.6 mL

Where:

cupCupStandard US cup (236.6 mL)
tbspTablespoonOne sixteenth of a cup
tspTeaspoonOne third of a tablespoon
mLMilliliterMetric volume unit

Step-by-Step Example

Here's how to calculate cooking unit conversion step by step:

  1. 1Identify source unit: Determine what unit your recipe uses (cups, tbsp, mL, etc.).
  2. 2Find the conversion factor: Look up the ratio between your source and target units.
  3. 3Multiply or divide: Apply the conversion factor to get the new measurement.

Following these 3 steps gives you the final cooking unit conversion value.

Skip the Math

A British recipe calling for 300 mL of milk converts to about 1.27 US cups (300 / 236.6), which you can round to 1 and 1/4 cups.

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Why You Need This Calculation

  • Cooking unit conversion is essential when following recipes from different countries or scaling between volume and weight.

Common Mistakes

Confusing fluid ounces with weight ounces.

Fluid oz measures volume; weight oz measures mass; they differ for most ingredients.

Using US cups for metric recipes.

A US cup is 236 mL; a metric cup is 250 mL.

Assuming all ingredients weigh the same per cup.

1 cup of flour (125g) weighs much less than 1 cup of sugar (200g).

Frequently Asked Questions